Gennes is the name of several communes in France:

Gennes, Doubs, in the Doubs département Gennes, Maine-et-Loire, in the Maine-et-Loire département Gennes-Ivergny, in the Pas-de-Calais département Gennes-sur-Glaize, in the Mayenne département Gennes-sur-Seiche, in the Ille-et-Vilaine département

See also

De Gennes